429 medium duty engine

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Post  asullenger on February 13th 2019, 8:10 pm

Hey Folks, first post here!!

Need some advice.

I came into a 429 medium duty engine with 10,000 actual miles for what I "THOUGHT" was a good price. But after finding out the snout and rear flange have to be ground down I'm beginning to wonder if it was.

It's going in a lifted '79 Bronco with 38in tires and that occasionally pulls a boat. So the high torque at lower rpm's is fine with me, that's really what Im after. It'll be lucky if it ever see's anything over 4k rpm's.
Can I replace the cast iron timing cover without replacing the double timing chain\gears?? Or does that come with getting the crank cut down??

I guess what I need to know is what are yall's thoughts on it?? Is it worth it to get the crank worked down, or should I just try to sell it, hopefully recoup my money and move on to something else.

I knew trying to put a 429/460 in a Bronco was going to be a challenge, but this is going way further than I ever thought it'd be.

HELP!! LOL

Thanks,
Anthony

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Post  BBFTorino on February 14th 2019, 12:30 am

What engine is in the Bronco right now?

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Post  asullenger on February 14th 2019, 8:51 am

Had a 400 in it.

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Post  1EFF100 on February 14th 2019, 9:32 am

asullenger wrote:Had a 400 in it.

Well that makes your engine swap super easy--already have the correct bell housing. A set of L&L motor mounts and your in business.
You may want to rethink using the truck 429 and find yourself a complete 460 with all the front accessories and brackets. It doesn't have to be from a pick-up, a car 460 works too.
If I recall correctly, I used a 1970 460 out of one of the big cars of that era for my '79 F-100 swap and used all of the car brackets and accessories. Worked great.
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Post  asullenger on February 14th 2019, 9:42 am

Yeah, think you’re right on the truck engine. Think I’m just gonna try and sell it and my money back on it.

Thanks

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Post  asullenger on February 15th 2019, 9:42 am

If one was to rebuild this engine, what year overhaul kit would you use??
If you get one the for the same year it is, would it not be The same as in it??

Just tryin to figure all my options out

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Post  rmcomprandy on February 15th 2019, 10:27 am

asullenger wrote:Hey Folks, first post here!!

Need some advice.

I came into a 429 medium duty engine with 10,000 actual miles for what I "THOUGHT" was a good price. But after finding out the snout and rear flange have to be ground down I'm beginning to wonder if it was.

It's going in a lifted '79 Bronco with 38in tires and that occasionally pulls a boat. So the high torque at lower rpm's is fine with me, that's really what Im after. It'll be lucky if it ever see's anything over 4k rpm's.
Can I replace the cast iron timing cover without replacing the double timing chain\gears?? Or does that come with getting the crank cut down??

I guess what I need to know is what are yall's thoughts on it?? Is it worth it to get the crank worked down, or should I just try to sell it, hopefully recoup my money and move on to something else.

I knew trying to put a 429/460 in a Bronco was going to be a challenge, but this is going way further than I ever thought it'd be.

HELP!! LOL

Thanks,
Anthony

Unless you need to have a 3.89" stroke or less, an aftermarket steel crankshaft of 4.150" stroke or more is much more cost effective when building a complete engine. The cost of reworking THAT 429 crankshaft would be much more.

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Post  asullenger on February 15th 2019, 4:35 pm

Ok thanks

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